Finding the Fourth Proportional to 115,765.07, 159,725.93 and 68,009.09
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Solution
The fourth proportional to 115,765.07, 159,725.93 and 68,009.09 is: 93,834.99
Step by Step Solution
- Step 1: Write the proportion equation
115,765.07 : 159,725.93 = 68,009.09 : x - Step 2: Convert to fraction form
115,765.07/159,725.93 = 68,009.09/x - Step 3: Cross multiply
115,765.07x = 159,725.93 × 68,009.09 - Step 4: Simplify right side
115,765.07x = 10,862,814,010.03 - Step 5: Solve for x
x = 10,862,814,010.03/115,765.07 - Step 6: Final answer
x = 93,834.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.